QWebEngineSettings

The QWebEngineSettings class provides an object to store the settings used by QWebEnginePage . More

Inheritance diagram of PySide2.QtWebEngineWidgets.QWebEngineSettings

Synopsis

Functions

Static functions

Detailed Description

QWebEngineSettings allows configuration of browser properties, such as font sizes and families, the location of a custom style sheet, and generic attributes, such as JavaScript support. Individual attributes are set using the setAttribute() function. The WebAttribute enum further describes each attribute.

Each QWebEnginePage object has its own QWebEngineSettings object, which configures the settings for that page. If a setting is not configured for a web engine page, it is looked up in the settings of the profile the page belongs to.

PySide2.QtWebEngineWidgets.QWebEngineSettings.FontFamily

This enum describes the generic font families defined by CSS 2. For more information see the CSS standard.

Constant

Description

QWebEngineSettings.StandardFont

QWebEngineSettings.FixedFont

QWebEngineSettings.SerifFont

QWebEngineSettings.SansSerifFont

QWebEngineSettings.CursiveFont

QWebEngineSettings.FantasyFont

QWebEngineSettings.PictographFont

(added in Qt 5.7)

PySide2.QtWebEngineWidgets.QWebEngineSettings.WebAttribute

This enum type specifies settings for web pages:

Constant

Description

QWebEngineSettings.AutoLoadImages

Automatically dowloads images for web pages. When this setting is disabled, images are loaded from the cache. Enabled by default.

QWebEngineSettings.JavascriptEnabled

Enables the running of JavaScript programs in the MainWorld . Enabled by default.

QWebEngineSettings.JavascriptCanOpenWindows

Allows JavaScript programs to open popup windows without user interaction. Enabled by default.

QWebEngineSettings.JavascriptCanAccessClipboard

Allows JavaScript programs to read from and write to the clipboard. Writing to the clipboard is always allowed if it is specifically requested by the user. See to also allow pasting the content of the clipboard content from JavaScript. Disabled by default.

QWebEngineSettings.LinksIncludedInFocusChain

Includes hyperlinks in the keyboard focus chain. Enabled by default.

QWebEngineSettings.LocalStorageEnabled

Enables support for the HTML 5 local storage feature. Enabled by default.

QWebEngineSettings.LocalContentCanAccessRemoteUrls

Allows locally loaded documents to ignore cross-origin rules so that they can access remote resources that would normally be blocked, because all remote resources are considered cross-origin for a local file. Remote access that would not be blocked by cross-origin rules is still possible when this setting is disabled (default). Note that disabling this setting does not stop XMLHttpRequests or media elements in local files from accessing remote content. Basically, it only stops some HTML subresources, such as scripts, and therefore disabling this setting is not a safety mechanism.

QWebEngineSettings.XSSAuditingEnabled

Monitors load requests for cross-site scripting attempts. Suspicious scripts are blocked and reported in the inspector’s JavaScript console. Enabled by default.

QWebEngineSettings.SpatialNavigationEnabled

Enables the Spatial Navigation feature, which means the ability to navigate between focusable elements, such as hyperlinks and form controls, on a web page by using the Left, Right, Up and Down arrow keys. For example, if a user presses the Right key, heuristics determine whether there is an element they might be trying to reach towards the right and which element they probably want. Disabled by default.

QWebEngineSettings.LocalContentCanAccessFileUrls

Allows locally loaded documents to access other local URLs. Enabled by default.

QWebEngineSettings.HyperlinkAuditingEnabled

Enables support for the ping attribute for hyperlinks. Disabled by default.

QWebEngineSettings.ScrollAnimatorEnabled

Enables animated scrolling. Disabled by default.

QWebEngineSettings.ErrorPageEnabled

Enables displaying the built-in error pages of Chromium. Enabled by default.

QWebEngineSettings.PluginsEnabled

Enables support for Pepper plugins, such as the Flash player. Disabled by default. See also Pepper Plugin API . (Added in Qt 5.6)

QWebEngineSettings.FullScreenSupportEnabled

Enables fullscreen support in an application. Disabled by default. (Added in Qt 5.6)

QWebEngineSettings.ScreenCaptureEnabled

Enables screen capture in an application. Disabled by default. (Added in Qt 5.7)

QWebEngineSettings.WebGLEnabled

Enables support for HTML 5 WebGL. Enabled by default if available. (Added in Qt 5.7)

QWebEngineSettings.Accelerated2dCanvasEnabled

Specifies whether the HTML5 2D canvas should be a OpenGL framebuffer. This makes many painting operations faster, but slows down pixel access. Enabled by default if available. (Added in Qt 5.7)

QWebEngineSettings.AutoLoadIconsForPage

Automatically downloads icons for web pages. Enabled by default. (Added in Qt 5.7)

QWebEngineSettings.TouchIconsEnabled

Enables support for touch icons and precomposed touch icons Disabled by default. (Added in Qt 5.7)

QWebEngineSettings.FocusOnNavigationEnabled

Gives focus to the view associated with the page, whenever a navigation operation occurs (load, stop, reload, reload and bypass cache, forward, backward, set content, and so on). Disabled by default. (Added in Qt 5.8)

QWebEngineSettings.PrintElementBackgrounds

Turns on printing of CSS backgrounds when printing a web page. Enabled by default. (Added in Qt 5.8)

QWebEngineSettings.AllowRunningInsecureContent

By default, HTTPS pages cannot run JavaScript, CSS, plugins or web-sockets from HTTP URLs. This provides an override to get the old insecure behavior. Disabled by default. (Added in Qt 5.8)

QWebEngineSettings.AllowGeolocationOnInsecureOrigins

Since Qt 5.7, only secure origins such as HTTPS have been able to request Geolocation features. This provides an override to allow non secure origins to access Geolocation again. Disabled by default. (Added in Qt 5.9)

QWebEngineSettings.AllowWindowActivationFromJavaScript

Allows activating windows by using the window.focus() JavaScript method. Disabled by default. (Added in Qt 5.10)

QWebEngineSettings.ShowScrollBars

Shows scroll bars. Enabled by default. (Added in Qt 5.10)

QWebEngineSettings.PlaybackRequiresUserGesture

Inhibits playback of media content until the user interacts with the page. This is similar to how Chrome on Android behaves, while the default behavior when it is disabled is similar to Chrome on desktops. (Added in Qt 5.11)

QWebEngineSettings.JavascriptCanPaste

Enables JavaScript execCommand("paste"). This also requires enabling . Disabled by default. (Added in Qt 5.11)

QWebEngineSettings.WebRTCPublicInterfacesOnly

Limits WebRTC to public IP addresses only. When disabled WebRTC may also use local network IP addresses, but remote hosts can also see your local network IP address. Disabled by default. (Added in Qt 5.11)

QWebEngineSettings.DnsPrefetchEnabled

Specifies whether WebEngine will try to pre-fetch DNS entries to speed up browsing. Disabled by default. (Added in Qt 5.12)

QWebEngineSettings.PdfViewerEnabled

Specifies that PDF documents will be opened in the internal PDF viewer instead of being downloaded. Enabled by default. (Added in Qt 5.13)

PySide2.QtWebEngineWidgets.QWebEngineSettings.FontSize

This enum describes the font sizes configurable through QWebEngineSettings :

Constant

Description

QWebEngineSettings.MinimumFontSize

The hard minimum font size.

QWebEngineSettings.MinimumLogicalFontSize

The minimum logical font size that is applied when zooming out.

QWebEngineSettings.DefaultFontSize

The default font size for regular text.

QWebEngineSettings.DefaultFixedFontSize

The default font size for fixed-pitch text.

PySide2.QtWebEngineWidgets.QWebEngineSettings.UnknownUrlSchemePolicy

This enum describes how navigation requests to URLs with unknown schemes are handled.

Constant

Description

QWebEngineSettings.DisallowUnknownUrlSchemes

Disallows all navigation requests to URLs with unknown schemes.

QWebEngineSettings.AllowUnknownUrlSchemesFromUserInteraction

Allows navigation requests to URLs with unknown schemes that are issued from user-interaction (like a mouse-click), whereas other navigation requests (for example from JavaScript) are suppressed.

QWebEngineSettings.AllowAllUnknownUrlSchemes

Allows all navigation requests to URLs with unknown schemes.

New in version 5.11.

static PySide2.QtWebEngineWidgets.QWebEngineSettings.defaultSettings()
Return type

QWebEngineSettings

Returns the settings for a web engine page that belongs to the default profile. All web pages not specifically created with another profile belong to the default profile.

PySide2.QtWebEngineWidgets.QWebEngineSettings.defaultTextEncoding()
Return type

unicode

Returns the default text encoding.

PySide2.QtWebEngineWidgets.QWebEngineSettings.fontFamily(which)
Parameters

whichFontFamily

Return type

unicode

Returns the actual font family for the specified generic font family, which .

See also

setFontFamily()

PySide2.QtWebEngineWidgets.QWebEngineSettings.fontSize(type)
Parameters

typeFontSize

Return type

int

Returns the default font size for type in pixels.

See also

setFontSize()

static PySide2.QtWebEngineWidgets.QWebEngineSettings.globalSettings()
Return type

QWebEngineSettings

Use defaultSettings() instead.

PySide2.QtWebEngineWidgets.QWebEngineSettings.resetAttribute(attr)
Parameters

attrWebAttribute

Resets the setting of attribute to the value specified in the profile that the page belongs to.

PySide2.QtWebEngineWidgets.QWebEngineSettings.resetFontFamily(which)
Parameters

whichFontFamily

Resets the actual font family specified by which to the one specified in the profile that the page belongs to.

PySide2.QtWebEngineWidgets.QWebEngineSettings.resetFontSize(type)
Parameters

typeFontSize

Resets the font size for type to the size specified in the profile that the page belongs to.

PySide2.QtWebEngineWidgets.QWebEngineSettings.resetUnknownUrlSchemePolicy()

Removes the policy for handling navigation requests to URLs with unknown schemes.

PySide2.QtWebEngineWidgets.QWebEngineSettings.setAttribute(attr, on)
Parameters

Enables or disables the specified attribute feature depending on the value of on .

PySide2.QtWebEngineWidgets.QWebEngineSettings.setDefaultTextEncoding(encoding)
Parameters

encoding – unicode

Specifies the default text encoding system.

The value of encoding must be a string describing an encoding such as “utf-8” or “iso-8859-1”. If left empty, a default value will be used. For a more extensive list of encoding names see QTextCodec .

PySide2.QtWebEngineWidgets.QWebEngineSettings.setFontFamily(which, family)
Parameters

Sets the actual font family to family for the specified generic family, which .

See also

fontFamily()

PySide2.QtWebEngineWidgets.QWebEngineSettings.setFontSize(type, size)
Parameters

Sets the font size for type to size in pixels.

See also

fontSize()

PySide2.QtWebEngineWidgets.QWebEngineSettings.setUnknownUrlSchemePolicy(policy)
Parameters

policyUnknownUrlSchemePolicy

Sets the policy for handling navigation requests to URLs with unknown schemes to policy . Default is AllowUnknownUrlSchemesFromUserInteraction .

PySide2.QtWebEngineWidgets.QWebEngineSettings.testAttribute(attr)
Parameters

attrWebAttribute

Return type

bool

Returns true if attribute is enabled; otherwise returns false .

PySide2.QtWebEngineWidgets.QWebEngineSettings.unknownUrlSchemePolicy()
Return type

UnknownUrlSchemePolicy

Returns the currently selected policy for handling navigation requests to URLs with unknown schemes. Default is AllowUnknownUrlSchemesFromUserInteraction .